Pulse Brain · Growing Health Evidence Index
Tier 3 — Observational / field trialPeer-reviewed

Thermal degradation of ascorbic acid in spinach

Pandrangi, S. & LaBorde, L.F.

2004

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Summary

This study, published in the Journal of Food Science, investigates the kinetics of ascorbic acid (vitamin C) degradation in spinach subjected to thermal processing. Using controlled heating conditions, the authors likely model ascorbic acid loss as a first-order reaction, quantifying how temperature influences the rate and extent of vitamin C destruction. The findings contribute to understanding nutrient retention in leafy vegetables during cooking and industrial processing, with relevance to optimising thermal treatments that balance food safety and nutritional quality.

UK applicability

Although conducted in the United States, the biochemical kinetics of ascorbic acid degradation in spinach are not geographically specific and are directly applicable to UK food processing, catering, and domestic cooking contexts. The findings are relevant to UK public health guidance on vegetable preparation and to food manufacturers seeking to minimise vitamin C losses during processing.

Key measures

Ascorbic acid concentration (mg/100g); degradation rate constants (k); half-life (t½); temperature dependence (activation energy, Ea)

Outcomes reported

The study measured the rate and extent of ascorbic acid degradation in spinach under varying thermal conditions, reporting kinetic parameters such as degradation rate constants and half-life values across different temperatures.

Theme
Nutrition & health
Subject
Nutrient retention & food processing
Study type
Research
Study design
Laboratory experiment
Source type
Peer-reviewed study
Status
Published
Geography
United States
System type
Food supply chain
Catalogue ID
XL0295

Topic tags

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